If the whole earth is to be connected by LOS communication using space waves (no restriction of antenna size or tower height), what is the minimum number of antennas required? Calculate the tower height of these antennas in terms of earth’s radius.?
If the whole earth is to be connected by LOS communication using space waves (no restriction of antenna size or tower height), what is the minimum number of antennas required? Calculate the tower height of these antennas in terms of earth’s radius.?
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1 Answer
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This is a Short Answer Type Questions as classified in NCERT Exemplar
maximun distance to cover entire surface of earth for communication isdm2= (R+h)2+ (R+h)2= 2 (R+h)2
So dm=
8hR= R2+2Rh+h2
R-h=0
R=h so frequency of space wave Is less than height of tower. So it is also keep in consideration. for 3 dimension coverage 2 antennna each side means total 6 antenna required.
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